In the case of a composition close to the critical value, say, a \(50:50\)  proportion of A and B particles for a symmetric model of mixture, growth occurs via transport of material through tube-like structure [1]}, [2]}, [3]}, [4]}, [5]}, [6]}. Overall growth in this situation is not described by a single exponent. At very early time LS picture remains valid [1]}, [2]}. Following this hydrodynamics becomes important, leading to a crossover of the exponent to \(\alpha =1\) , in space dimension \(d=3\) , which is referred to as the viscous hydrodynamic growth [1]}, [2]}, [3]}, [6]}, [13]}, [14]}, [15]}. At an even later time a further crossover occurs to a smaller value, viz., \(\alpha =2/3\) , known as the inertial hydrodynamic exponent [1]}, [2]}. For a composition close to any of the branches of the coexistence curve, on the other hand, the late time growth, in an hydrodynamic environment, may occur via coalescence of disconnected droplets that consist primarily of particles of the minority phase [6]}, [19]}, [20]}, [14]}, [15]}, [23]}, [24]}, [25]}, [26]}, [27]}. This we discuss below.
